The mac I have listed below does the spinning beachball thing ALOT when I'm using Mozilla's FireFox browser. IT's gotten to the point some times where I have to hard shut down the machine by holding the power switched. I have the following installed with firefox as addons.... Office Live Plug-in 7.6.3(Microsoft) Shockwave flash 10.0.32 Jave Embedding Plugin 0.9.7.2 MRJ Plugin ver. 1.0-jep-0/.9.7.2 Quicktime 7.6.3 plugin Flip4Mac 2.2.3 Default GECKO plugin(No idea what this is) I also have something for a facebook plug in but it's not listed and I don't remember what it did. I just removed the Mini-istat widget...maybe that was the problem, not sure. I just uninstalled Firefox with App Cleaner and reinstalled using somehting i freshly downloaded. I ran all the Tech Tool delux stuff that came with the MacBook Pro Apple Care CD set. I also play COD4 and World of Warcraft, without problem. iTunes Illustrator CS3 and MS Office run fine.... Any thoughts?